Heating system



'July 1929. J. E. DE {LONG 1.719.321

HEATING SYSTEM Filed July 21, 1923 Patented July 2, 1929.

UNITED STATES PATENT OFFICE.

JAMES E. DE LONG, OF WAUKESHA, WISCONSIN, ASSIGNOR TO WAUKESHA MOTOR COMPANY, OF WAUKESI-IA, WISCONSIN, A CORPORATION OF WISCONSIN.

HEATING SYSTEM.

Application filed July 21,

My invention relates to heating systems particularly adaptable and efficient for heating automotive vehicles. I also provide valve mechanism for controlling and adjusting the flow of steam. On the drawing,

Figure 1 is a more or less diagrammatic representation of an automotive vehicle engine with its cooling system, condenser, valve mechanism, and heating jacket around the exhaust manifold for receiving wet steam to be dried or superheated;

Fig. 2 shows a modified arrangement in which the wet steam is generated in the heating jacket on the exhaust manifold; and

Fig. 3 shows another arrangement in which a heating jacket around the exhaust manifold generates steam for a radiator structure independently of the cooling water system of the engine.

The engine E has the usual water jacket D from which extends a steam dome 10. The circulating pump P has its outlet end connected with the water jacket and its inlet end connected with the lower end of the condenser R by the pipes P and P respectively. H represents a body heater which may be in the form of a sectional radiator and which is placed in some convenient position within the automobile body to supply heat for the passengers. V represents a controlling valve having the housing 11 and the valve plug 12, which plug has a lever 13 extending therefrom and which in practice is connected by means of a rod with an operating button or knob within the vehicle to be operated by the driver or the mssengers. A represents the exhaust manifold of the engine and it is surrounded by a jacket 14 which is connected at one end with the valve housing by the pipe 15, and is connected at its other end through pipe 16 with the top of the heater H in Fig. 1. A pipe 17 connects the lower end of the heater with the condenser. The valve chamber 11 communicates with the steam dome 10 through port 18, and with the top of the condenser through the port or passageway 19. The steam dome communicates directly with the top of the condenser through the pipe 20 in which the relief valve 21 is interposed so that direct flow to the condenser will occur only when a predetermined pressnre is exceeded.

The valve plug 12 has the valve port 22 extending diametrically therethrongh, and in the position of the valve shown in Fig. 1

1926. Serial No. 123,915.

the steam dome is in communication through the valve port with the pipe 15 leading to the steam jacket 14. Vhen the valve 1s turned by means of its lever 13 its port will connect the steam dome directly with the condenser through the pipe 19.

In the arrangement of Fig. 1 and with the valve fitting there shown, the wet steam from the engine water jacket will flow into the dome 10 and then through the valve port and the pipe 15 into the steam jacket 14 and around the exhaust manifold where it will be dried or superheated to be delivered through the pipe 16 to the heater H, the cooled steam or moisture flowing from the heater through the pipe 17 to the condenser to be cooled, the pump P then pumping the water from the condenser back into the engine water jacket, the engine being then properly cooled and the water taking on the heat and being reconverted into wet steam. When the valve is turned, the flow from the dome 10 to the steam heating jacket 14 will be cut off and the wet steam will flow directly from the dome to the condenser to be condensed. Should the steam pressure be come excessive the relief valve 21 will operate to relieve the pressure and the excess steam will flow through the pipe 20 to the condenser.

In the arrangement of Fig. 2, the heating jacket 14 is utilized to assist the engine frame in heating the water to produce wet steam. The pipe 23 leading from the condenser R connects with the branch pipes 24 and 25. the pipe 24 leading to the lower part of the heating jacket 14 and the pipe 25 leading to the engine water jacket below the water level therein. Valves 26 and 27 control the flow through the pipes 24 and 25 respectively. The pipe 28 connects the upper part of the heating jacket 14 with the engine water jacket above the water level. By manipulation of the valves 26 and 27 the water from the condenser can be delivered directly to the engine water jacket, or can be delivered to the heating jacket 14 to be converted into wet steam Which will be delivered to the dome 10 to mix with the wet steam generated in the engine water jacket. Such wet steam can then be delivered thru the pipe 29 from the valve housing to the heater H to deliver its heat, the remaining steam or water of condensation finding its Way back to the condenser through the pipe 30. By adjusting the valves 26, 27, part of the water from the condenser could be delivered directly to the engine water jacket and part to the heating jacket 14. By reducing the supply of water to the heating jacket 14 the generated steam will be drier and may be superheated before delivering to the top of the water jacket and to the dome 10. By means of the heating jacket 14, the nature of the steam in the dome can be modified as desired.

In the arrangement of Fig. 3, the steam supply for the heater H is generated by the heating jacket 14 independently of the engine water jacket. The pipe 31 connects the top of the heating jacket to the top ot' the heater and the return pipe 32 extends from the bottom of the heater to the bottom of the heating jacket. The line L-L indicates the normal level of the water supply and as the Water is heated in the steam jacket the generated steam will flow upwardly in the pipe 31 and then through the heater H, the remaining steam or water of (ondensation returning to the steam jacket through the pipe 32.

I thus efficiently utilize the heat of the engine exhaust passage or manifold in a surrounding jacket or chamber for supplying additional heat for converting the engine cooling water into steam or for additionally heating steam to a dry or superheated condition, or for independently converting water into steam for heaters or radiators.

I claim the following:

In combination in a heating system for vehicles, an internal combustion engine, a cooling system for the engine comprising a water jacket and a condenser, a steam dome communicating with the water jacket, a radi ator having its inlet connected to the steam dome and its outlet connected. to the condenser, a connection between the steam dome and the condenser, means controlling communication between the steam dome and the radiator and the condenser, a second connection between the steam dome and the condenser, a relief valve in said second connection for establishing communication between the dome and the condenser when the pressure in the dome reaches a predetermined maximum value, and a connection between the water jacket and the condenser.

In witness whereof, I have hereunto subscribed my name this 15th day of July, 1926.

JAMES E. DE JONG. 

